1917.] NATURAL SCIENCES OF PHILADELPHIA. 81 



This near-gabbiana form was found again at Sta. 123, but the 

 shells here were somewhat larger. 



Material reported from these mountains by Hemphill under the 

 names haydeni, hemphilli and oqidrrhensis is all oquirrhensis. Re- 

 peated careful examinations, by one of the present writers, of such 

 material in several Hemphill collections, fail to discover any basis 

 for or consistency in his separation of the material. Professor 

 T. D. A, Cockerell and Dr. Paul Bartsch recentl}^ at our request, 

 compared examples of oquirrhensis from our Sta. 120 with three 

 examples from the type lot of haijdeni, from Weber Canyon, in the 

 United States National ^luseum, and find them "quite distinct." 

 Professor Cockerell writes: "The difference in the spiral keels is 

 constant. In haydeni the whorls are rounded, the keels subequal, 

 and the peripheral keel not distinct as in the Oquirrh Mountain 

 specimens. Haydeni has a distinct channel below the suture, which 

 is not present in the Oquirrh ^Mountain material." 



Eureka, Utah. 



Sta. 6, north side of Godiva Blount ain, in the southeast edge of the 

 town. In 1915, in collecting about 800 specimens of the small form 

 of Oreohelix cooperi (W. G. B.) at this station, we obtained the type 

 lot of 0. hemphilli eurekensis H. and D., only seven specimens, all 

 dead shells. In 1916 we revisited the station, but found no more 

 of the eurekensis until we crossed a shallow ravine which marked the 

 eastern boundary of our former work. There we found the small 

 cooperi and eurekensis about equally plentiful, and obtained about 

 600 of the latter, mostly alive. The anatomy of eurekensis, according 

 to Pilsbry, shows relationship to the southern yavapai group. The 

 anatomy of hemphilli is as yet unknown, eurekensis being designated 

 a subspecies of it on shell characters only. We also found at this 

 station Pupilla hlandi (Morse), common; Succinea avara Say (?), 

 a few worn specimens; Vallonia cyclophorella Ancey, rare. 



Sta. 124, west slope of Pinyon Mountain, three miles northeast 

 of Eureka. Oreohelix strigosa depressa (Ckll.), a few small, dead 

 shells beneath Kunzia tridentata near limestone ledges. We found 

 none alive and no dead shells in the rock slides, though we made a 

 long search for them. A box containing the same form is in Mrs. 

 Oldroyd's Hemphill collection, bearing the following label: "Var. 

 alhida, corneus, etc., Eureka, Utah, 1912. Oiled." The shells are 

 a little larger than those we found. 



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